Why did Mordecai tear his clothes?

Mordecai tore his clothes in response to the decree issued by Haman to annihilate the Jewish people, which filled him with deep sorrow and despair. This act of mourning was a traditional expression of grief and desperation in Jewish culture. He also sought to publicly show his anguish and rally the Jewish community to respond to the impending threat. Mordecai's actions highlighted the gravity of the situation and the need for urgent action.